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Effect of temperature and duration of post‐cure on selected mechanical properties of resin composites containing carboxylic anhydrides
Author(s) -
Peutzfeldt Anne,
Asmussen Erik
Publication year - 1992
Publication title -
european journal of oral sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.802
H-Index - 93
eISSN - 1600-0722
pISSN - 0909-8836
DOI - 10.1111/j.1600-0722.1992.tb01074.x
Subject(s) - composite material , materials science , curing (chemistry) , stiffness
Resin composites containing carboxylic anhydrides have recently been formulated, for use as inlay materials. To optimize the post‐cure, the present study measured the effect of post‐cure temperature and duration on four mechanical properties of anhydride‐containing resin composites. Temperatures were varied between 37°C and 225°C, and durations were varied between 0 and 24 h. An optimum in strength and stiffness was found when post‐cure temperatures of 125–150°C were used. Strength and stiffness were found to increase with increasing duration of post‐cure. Due to discoloration of the resin composites when post‐curing for 6 or 24 h, a post‐cure period of 1 h was preferred.